Finding the Third Proportional to 1,055.25 and 1,638.13

Step by Step Solution

1. Step 1: Write the proportion equation
   1,055.25 : 1,638.13 = 1,638.13 : x
2. Step 2: Convert to fraction form
   1,055.25/1,638.13 = 1,638.13/x
3. Step 3: Cross multiply
   1,055.25x = 1,638.13 × 1,638.13
4. Step 4: Simplify right side
   1,055.25x = 2,683,453.52
5. Step 5: Solve for x
   x = 2,683,453.52/1,055.25
6. Step 6: Final answer
   x = 2,542.96